# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/leo-i-the-thracian
# Generated: 2026-09-07T19:42:03.847Z

schema: https://schema.org/Person
url: "https://fame.am/person/leo-i-the-thracian"
name: "Leo I the Thracian"
slug: "leo-i-the-thracian"
description: "He legislated in Greek when emperors still wrote laws in Latin, ran the Eastern Empire for seventeen years while the West crumbled, and sent armies west to try holding the old order together."
tagline: "Eastern Roman emperor from 457 to 474"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Leo_I_Louvre_Ma1012_n2.jpg?width=1200"
gender: "male"
category:
  name: "Politicians"
  slug: "politicians"
profileType:
  name: "Politician"
  slug: "politician"
birthDate: "401"
deathDate: "0474-01-19"
livingStatus: "DECEASED"
scores:
  popularity:           55.03
  momentum:             0
  historical:           23.08487866666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
tags:
  - name: "Politicians"
    slug: "politicians"
  - name: "Politician"
    slug: "politician"
  - name: "Politics"
    slug: "politics"
  - name: "Ancient History"
    slug: "ancient-history"
sources:
  - url: "https://www.wikidata.org/wiki/Q183776"
    title: "Wikidata"
    type:  "WIKIDATA"
  - url: "https://en.wikipedia.org/wiki/Leo_I_the_Thracian"
    title: "Wikipedia"
    type:  "WIKIPEDIA"
  - url: "https://pantheon.world/profile/person/Leo%20I%20the%20Thracian"
    title: "Pantheon 2.0"
    type:  "DATABASE"
  - url: "https://an.wikipedia.org/wiki/Le%C3%B3n_I_de_Bizancio"
    title: "León I de Bizancio"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D9%84%D8%A7%D9%88%D9%86_%D8%A7%D9%84%D8%A3%D9%88%D9%84_(%D8%A5%D9%85%D8%A8%D8%B1%D8%A7%D8%B7%D9%88%D8%B1_%D8%A8%D9%8A%D8%B2%D9%86%D8%B7%D9%8A)"
    title: "لاون الأول (إمبراطور بيزنطي)"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D9%84%D9%8A%D9%88_%D8%A7%D9%84%D8%A7%D9%88%D9%84"
    title: "ليو الاول"
    type:  "WIKIPEDIA"
  - url: "https://azb.wikipedia.org/wiki/%D8%A8%DB%8C%D8%B1%DB%8C%D9%86%D8%AC%DB%8C_%D9%84%D8%A6%D9%88%D9%86_(%D8%A8%DB%8C%D8%B2%D8%A7%D9%86%D8%B3)"
    title: "بیرینجی لئون (بیزانس)"
    type:  "WIKIPEDIA"
  - url: "https://be.wikipedia.org/wiki/%D0%9B%D0%B5%D1%9E_I_%D0%9C%D0%B0%D0%BA%D0%B5%D0%BB%D0%B0"
    title: "Леў I Макела"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%9B%D1%8A%D0%B2_I_%D0%A2%D1%80%D0%B0%D0%BA%D0%B8%D0%B5%D1%86"
    title: "Лъв I Тракиец"
    type:  "WIKIPEDIA"
  - url: "https://br.wikipedia.org/wiki/Leon_Ia%C3%B1_(impalaer)"
    title: "Leon Iañ (impalaer)"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Lle%C3%B3_I_el_Traci"
    title: "Lleó I el Traci"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/Leon_I."
    title: "Leon I."
    type:  "WIKIPEDIA"
  - url: "https://cy.wikipedia.org/wiki/Leo_I"
    title: "Leo I"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Leo_I._(Byzanz)"
    title: "Leo I. (Byzanz)"
    type:  "WIKIPEDIA"
  - url: "https://diq.wikipedia.org/wiki/Leo_I_(%C4%B0mperator)"
    title: "Leo I (İmperator)"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%9B%CE%AD%CF%89%CE%BD_%CE%91%CE%84"
    title: "Λέων Α΄"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Leo_I_(emperor)"
    title: "Leo I (emperor)"
    type:  "WIKIPEDIA"
  - url: "https://eo.wikipedia.org/wiki/Leono_la_1-a_la_Traco"
    title: "Leono la 1-a la Traco"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Le%C3%B3n_I_(emperador)"
    title: "León I (emperador)"
    type:  "WIKIPEDIA"
  - url: "https://et.wikipedia.org/wiki/Leo_I_(keiser)"
    title: "Leo I (keiser)"
    type:  "WIKIPEDIA"
  - url: "https://eu.wikipedia.org/wiki/Leon_I.a_Bizantziokoa"
    title: "Leon I.a Bizantziokoa"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D9%84%D8%A6%D9%88%D9%86_%DB%8C%DA%A9%D9%85_(%D8%A8%DB%8C%D8%B2%D8%A7%D9%86%D8%B3)"
    title: "لئون یکم (بیزانس)"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/Leo_I"
    title: "Leo I"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/L%C3%A9on_Ier_(empereur_byzantin)"
    title: "Léon Ier (empereur byzantin)"
    type:  "WIKIPEDIA"
  - url: "https://gl.wikipedia.org/wiki/Le%C3%B3n_I_(emperador)"
    title: "León I (emperador)"
    type:  "WIKIPEDIA"
  - url: "https://hak.wikipedia.org/wiki/Leo_1-s%E1%B9%B3"
    title: "Leo 1-sṳ"
    type:  "WIKIPEDIA"
  - url: "https://af.wikipedia.org/wiki/Leo_I_van_Bisantium"
    title: "Leo I van Bisantium"
    type:  "WIKIPEDIA"
  - url: "https://als.wikipedia.org/wiki/Leo_I._(Byzanz)"
    title: "Leo I. (Byzanz)"
    type:  "WIKIPEDIA"

# bio (long form, separated for readability)
bio: |
  Born around 401 in Dacia Aureliana near Thrace, Leo became Eastern Roman emperor in 457. Over seventeen years he launched ambitious campaigns aimed at propping up the collapsing Western Empire and reclaiming lost territory. He broke with centuries of precedent by issuing laws in Koine Greek instead of Latin, the first Eastern emperor to do so. He died on 18 January 474, sometimes called "the Great" to set him apart from his grandson and co-augustus Leo II. The Eastern Orthodox Church commemorates him as a saint on 20 January.